Prototype (Badassitude Factor: Gelatinous) - If you like plummeting from the sky and watching concrete explode beneath you when you land, this is for you.
Lemmingball Z. (Badassitude Factor: OVER 9000!) - If you like DBZ, and you get some cathartic release from building up an energy ball that takes up 1/4 of your screen, than this is for you.
Devil May Cry 4. (Badassitude Factor: Smarmy) - If you want to freestyle combos together and slam enemies around with your ghostly demon arm, this is for you.
Batman Arkham Asylum (Badassitude Factor: Gritty) - If you want to seamless, almost magically bitch the shit out of 8 guys, thrashing them to within an inch of their life, this is for you.
Batman Arkham City (Badassitude Factor: ~{ERROR}) - If you want to seamless, magically, beat the shit out of 16 guys, thrashing them to within an inch of your life, this is for you.
Warhammer 40k: Space Marine (Badassitude Factor: Epsilon) - If you want to be 10 feet tall and clad in 1 ton of power armor, shredding baddies' insides with your chainsword, this is for you.
Red Faction: Guerrilla (Badassitude Factor: Heavy Gauge) - If you want to literally dismantle an entire building with a sledge hammer, this is for you.
Vampire the Masquerade: Bloodlines (Badassitude Factor: Superior Being) - If you want to move faster than the human eye can follow, and punch dudes 20 feet down the street, this is for you.
Hrm, I guess I didn't really read your post that deeply. These games all make you feel like a big shot, but not necessarily like the hero everyone looks up to. Most of these are anti-heros. I guess Batman gets pretty close to that.